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Institute of Human Nutrition, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, USA. kz6@columbia.edu

OBJECTIVES: To determine whether patterns of sleeping metabolic rate (SMR) are altered in obesity. Specifically to determine the relationship between changes in SMR and body weight, body mass index (BMI, kg/m(2)), and fat-free mass (FFM); and to compare resting metabolic rate (RMR) with SMR during different periods of sleep. SUBJECTS: Eighteen healthy, pre-menopausal, obese (BMI >30, n=9) and non-obese (BMI <30, n=9), female subjects (six Caucasians and 12 African-Americans), with an average age of 36 y (range 22-45). MEASUREMENTS: Total energy expenditure (TEE or 24 h EE), metabolic rate (MR), SMR (minimum, average and maximum) and resting metabolic rate (RMR) or resting energy expenditure (REE) measured by human respiratory chamber, and external mechanical work measured by a force platform within the respiratory chamber. Physical activity index (PAL) was derived as TEE/REE. Body composition was determined by dual-energy X-ray absorptiometry (DXA). RESULTS: SMR decreased continuously during sleep and reached its lowest point just before the subject was awakened in the morning by the research staff. Although averages for RMR and SMR were similar, RMR was lower than SMR at the beginning of the sleeping period and higher than SMR in the morning hours. The rate of decrease in SMR was faster with increasing body weight (-0.829, P<0.0001), BMI (correlation factor -0.896, P<0.0001) and FFM (-0.798, P=0.001). The relationship between the slope of SMR decrease and BMI (y=-5 x 10(-6)x(2)+0.0002x-0.0028) is highly significant, with a P-value of <0.0001 and r(2) value of 0.9622. CONCLUSIONS: The rate of decline in metabolic rate during sleep is directly related to body weight, BMI and FFM. Average SMR tends to be lower than RMR in obese subjects and higher than RMR in non-obese subjects.

Int J Obes Relat Metab Disord 2002 Mar;26(3):376-83

* I've been reading a lot of studies like this lately trying to find out why my appetite is so ravenous upon waking in the am. It's what wakes my up every morning, dam hunger pangs !!!

anyone else have any other good info on this ? TCD any input ?

William F. Buckley describes a conservative as, "someone who stands athwart history, yelling Stop." - and then proceeds to drag civilization back to times best left in history's dungheap.

When cutting I have found that for myself not consuming carbs and fats in the same meal works best for me, as my body does not metabolize carbs well (any carbs even real low GI/GR). that's why I consume my fats seperately.

I eat constantly (protein every 2-3 hours) for the normal reasons. on my non-weight training days I do 1 45 minute am session of cardio and another 45 min session at night. to counter any possible effects of increased cortisol the frequent eating and related insulin response negates that. so muscle catabolism is not an issue. Originally I had different meal times on weight training and cardio days but decided to use the same for both for simplicity reasons.

It seems to be working well on April 1st I was 250 @ 18% bf on June first I was 220 @ 11% bf now I'm 228 @ 9.5% bf...

William F. Buckley describes a conservative as, "someone who stands athwart history, yelling Stop." - and then proceeds to drag civilization back to times best left in history's dungheap.

I wish I was happier about the progress but I'm just getting back to where I was last year after the worst bulking cycle ever ! I will never do a un-clean bulking cycle again, the uneccessary gains in bf are so not worth it.. the only thing that got big was my gut and my "ab" ! lol

William F. Buckley describes a conservative as, "someone who stands athwart history, yelling Stop." - and then proceeds to drag civilization back to times best left in history's dungheap.

LAM your bedtime Lean Body MRP should have about 12 grams of carbs....and getting it w/ony 3 grams of fat may be the problem!

Also you are not counting the glutamine in as protein, so with those totals (almost 80 P), you may be getting some hepatic gluconeogensis, which in turn, via an insulin surge, may be depleting your serum glucose levels a few hours later.

I would opt for 55 grams of Pro Complex with 4 Tbls of heavy cream and see if that makes a difference...or as TCD is saying, change to solids!

w8, I deal with a quite a few people that while not lactose intolerant, have no tolerance for for calcium or sodium cassienate, it tears them up, or at the very least makes then uncomfortable.

I wish I was happier about the progress but I'm just getting back to where I was last year after the worst bulking cycle ever ! I will never do a un-clean bulking cycle again, the uneccessary gains in bf are so not worth it.. the only thing that got big was my gut and my "ab" ! lol

Amen to that. After an unclean bulk, I'm coming down from my highest bf% ever...will never let it rise that high again. Good god, this is wasting so much time from my training.